Double-acting force-pump.



Patented Nov. 27 I900.

|. HOAGLAND.

l I l Y Wavy/ NITED STATES INGHAM I-IOAGLAND,

OF BALDWIN, IOWA.

DOUBLE-ACTING FORCE-PUMP.

SPECIFICATION forming part of Letters Patent No. 662,437, dated November 27, 1900.

Application filed May 21, 1898. Serial No. 681,345. (No model.)

To all whom zit may concern.-

Be it known that I, INGHAM HOAGLAND, a citizen of the United States, residing at Baldwin, in the county of Jackson and State of Iowa, have invented a new and useful Double- Acting Force-Pump, of which the following is a specification.

My invention relates generally to pumps, but more particularly to that class of pumps known as double-acting force-pumps, in which water is raised and forced during both the upward and downward strokes of the piston.

The object of the invention is to provide a simple, cheap, and durable pump of the class described which shall be composed of a minimum number of strong and durable parts and shall be exceedingly reliable and efficient in action.

With this object in View my invention consists in the improved construction, arrangement, and combination of parts hereinafter fully described and afterward specifically pointed out in the appended claim.

In order to enable others skilled in the art to which my invention most nearly appertains to make and use the same, I will now proceed to describe its construction and operation, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a perspective view of a pump constructed in accordance with my invention. Fig. 2 is a horizontal sectional view taken on the line 2 2 of Figs. 4 and 5. Fig. 3 is ahorizontal sectional View taken on the line 3 3 of Figs. 4 and 5. Fig. 4 is a vertical sectional View taken on the line at 4 of Figs. 2 and 3. Fig. 5 is a vertical sectional view taken on the line 5 5 of Figs. 2 and 3.

Like letters of reference mark the same parts Wherever they occur in the different figures of the drawings.

Referring to the drawings by letters, A indicates the pump-cylinder, in which is fitted the piston A, to which is attached the pistonrod A. r

B indicates the upper head, and O the lower head, of the cylinder, each of which consists of a block of metal provided with annular grooves in their adjacent faces to receive the top and bottom edges of the cylinder, as well as the top and bottom edges of smaller cylinders or pipes D and E, the two heads being clamped together by means of bolts F and nuts F, the bolts passing through vertical registering openings in the two heads and the nuts being threaded thereon above the top head and below the bottom head.

To the bottom head is attached a pipe G, leading from the supply of water, and to the top head is attached a delivery-pipe H. A vertical bore I through the bottomv head affords communication between the supply pipe G and the lower part of the cylinder A, that portion of the bore I which communicates with the cylinder being larger than that part which communicates with the pipe Gr, and an upward opening check-valve J being seated on a shoulder between the two diame- 7o ters of the bore. A branch pipe D leads from the bore I below the valve J into the lower end of the pipe D, while a branch channel I) leads from the upper end of the pipe D into that portion of the cylinder Aabove the piston. The pipe D is of greater diameter than the channel D, and the shoulder formed at their junction serves as the seat for an upward-opening check-valve .I. A branch channel E leads from the bore I above the valve J into the lower end of the pipe E, while a branch channel E leads from the upper end of the pipe E into the discharge-pipe II, a smaller branch channel E leading from the channel E" into that portion of the cylinder above the piston-head A. The pipe E is of greater diameter than the channel E, and the shoulder formed at their junction forms the seat of an upward-opening checkvalve K, while a smaller upward-opening o check-valve K is seated in the channel E at the top of the smaller branch channel E The piston-rod A passes up through a studing-box L and through the discharge-pipe H and is provided at its upper end with any suitable means for reciprocating it. (Not shown.) The valve J is hinged to a plate J, secured in the lower head at the junction of the channels D and E with the bore 1.

The construction of my invention will be readily understood from the foregoing description, and its operation may be described as follows: The blocks being secured in position and the piston being pressed downward,

. will force it to pass through the channel E,

valve K,pipe E,channe1 E,and discharge-pipe H, itbeing prevented from dropping into the upper portion of the cylinder above the pistonhead by means of the valve K. At the same time water is being drawn through the su pplypipe, the channel D, pipe D, and channel D into the upper part of the cylinder above the piston. The downward motion of the piston therein forces the water out of the lower end of the cylinder through the discharge-pipe and at the same time draws water, into the upper part,so that when the downward motion is completed and the piston-head is at the bottom of the cylinder the whole cylinder above it will be filled with water. now drawn upward, the water above it in the cylinder will be forced through the small branch E valve K, and the discharge-pipe H, the water forced through the small branch and valve being prevented from passing downward in the pipe E by means of the valve K. At the same time the water is prevented from passing downward in the pipe D by means of the Valve J", and water is drawn through the supply-pipeG, bore I, and valve J Zinto that portion of the cylinder below the piston, whereby the water in the upper part of the cylinder is discharged through the delivery-pipe and the lower part of the cylinder again filled through the supply-pipe by the upward movement of the piston. 4

From the foregoing description it will be obvious that my improved pum p will act both as a lift and force pump no matter how the pis-' ton is moved, Whether upward or downward, so that a continuous stream of water will be forced through the delivery-pipe as long as the piston is moved in either direction.

The parts are simple and few in number, easily made, and of such shapes that they may be easily replaced when worn or broken, the whole structure consisting of castings, tubing, piston and rod, ordinary bolts,valves, and a stuffing-box, so that no special tools are required to either manufacture the parts or replace them when worn or broken, except that of course the blocks must be cast from patterns especially prepared.

While I have illustrated and described what I now consider efficient means for car- The piston being,

rying out my invention, I do not wish to be understood as limiting myself to the exact details of construction shown and described, but hold that such slight changes or variations as might suggest themselves to the ordinary mechanic would properly fall within the limit and scope of my invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

In a force-pump, the combination, with two heads, one of which is provided with an inlet perforation, and with twoother perforations and three annular grooves in its inner face, one of the grooves being larger than the others, and with two channels communicating with the inlet perforation and with the other two perforations, respectively, the larger groove being concentric to the inletperforation, and the other grooves being concentric to the smaller perforations, and the other head provided with a perforation, the

outer portion of which forms the outlet and the inner portion is provided with a stuffingbox, and four other perforations and three annular grooves upon its inner surface, and with two channels, one of the grooves being larger than the others and concentric to the stuffing-box and inclosing two of the other perforations, and the other grooves being concentric to the two remaining perforations, respectively, one of the channels communicating with one of the two perforations outside the larger groove and with one of the perforations within the larger groove, and the other channel communicating with the other perforation outside of the larger groove and with the remaining perforation within the larger groove and with the outlet, of three cylinders secured between the heads, the ends of which fit within the corresponding grooves in the respective heads, a piston in the larger cylinder, the stem of which projects through the stuifing-box, and a series of valves, one of which is located in the inlet, one in each of the smaller perforations in the inlet-head, and one in the perforation in the outlet-head which communicates with the outlet-perforation.

INGHAM HOAGLAND.

Witnesses:

MARY L. BLAIR, AUSTIN PATTERSON. 

